The Ballast,diving Equipment, cataloged under National Stock Number 4220-01-571-3191, is classified within Federal Supply Class 4220 (Marine Lifesaving and Diving Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Hii Unmanned Systems, Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Ballast,diving Equipment |
| FSC / FSG | 4220 — Marine Lifesaving and Diving Equipment (FSG 42) |
| Manufacturers | Hii Unmanned Systems, Inc (CAGE 4Z5A9) |
| Parameter | Value |
|---|---|
| NSN | 4220-01-571-3191 |
| Primary Part Number | 152603-3 |
| Item Name | Ballast,diving Equipment |
| FSC / FSG | 4220 / 42 — Marine Lifesaving and Diving Equipment |
| Manufacturer | Hii Unmanned Systems, Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 152603-3 PRIMARY | Hii Unmanned Systems, Inc (USA) |
| Reference | Meaning |
|---|---|
| 152603-3 | 3/9 Design control — primary reference Hydroid, Llc |
NSN 4220-01-571-3191 is a Ballast,diving Equipment, manufactured by Hii Unmanned Systems, Inc, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.
NSN 4220-01-571-3191 has 1 manufacturer part number on file: 152603-3 (Hii Unmanned Systems, Inc).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.